ruby sparks
Contributor
Even if the EU does treat a post-Brexit Britain far more favourably than the EU treats its other trading partners (which I seriously doubt will happen), as long as it is not a free trade, post-Brexit Britain is economically worse off.
I have seen some pundits and commentators argue that a Brexited Britain can now get better bilateral trade deals with non-EU countries. While that is conceptually possible, I don't see why one would expect Britain which will have less clout than the EU to get better bilateral trade deals.
Switzerland seems to be doing ok.
And Norway.
On the other hand, Britain was not doing ok, compared to Europe, before it joined.
Neither of those may be an indicator of how Britain will fare after it leaves now. In the first case, those are different countries with different economies to Britain, and in the second case, it was a long time ago and much has changed.
One thing that can be said is that both Norway and Switzerland have complicated ‘trade off’ relationships with the EU which could be described as versions of the equivalent of a ‘soft brexit’.
In theory, a soft brexit may be ideal, especially if Britain could keep the good bits and lose the bad ones. Nearly everyone in the country agrees there are both of those aspects of membership.
I doubt the EU would agree to that sort of soft brexit though.

